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On the base of the theory on "the subtlety of acupuncture relying on the quick or slow needle insertion by the timing" recorded in the Chapter One of Lingshu (Miraculous Pivot) and the clinical application, professor GAO Zhen-wu created three core factors of "quick and slow needling technique" of acupuncture and summarized in the paper. The speed of deqi after needle insertion indicates the rising and falling of vital qi and pathogen in the body, which guides the selection of corresponding reinforcing or reducing needling techniques. At